Question # 1

Which of the following tends to approach ideal gas like behavior at R.T.P

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ammonia

neon

carbon dioxide

chlorine

The maximum hydrogen bonding is in:

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diethyl ether

ethanol

water

benzene

One of the following is potically non active amino acid

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Valine

Tyrosine

Glycine

Theronine

When two ice cubes are pressed together they unite to form one cube. which of the following forces is responsible for holding them together?

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H-bonding

Covalent bonding

van der waal's forces

dipole-dipole interaction

C₆H₁₂O₆is molecular formula of:

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Glucose

Dextrose

Fructose

All of these

Super conductors are derived from compounds of

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P-block elements

Lanthanides

Actinides

Transition elements

Acidification of soil can leach metal:

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Al

Hg

Pb

Ca

One of the environment problem is the formation of oil slicks when oil is spilled from tankers in sea water.

Which treatment is suitable to remove oil slicks

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blow air

add Na₂CO₃

use a specially made sorbent having fluorine trapped in it

Use a sorbent having Al₂O₃trapped in it

Unit of ozone is?

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Debye

Dobson

Esu

Coulumb

What are the conditions under which the relation between volume (V) and number of moles (n) of gas is plotted? (Pressure; T-temperature)

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constant P and T

constant P and V

constant T and V

constant n and v

The three dimensional folding and twisting of a polypeptide chain give rise to

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Primary structure

Secondary structure

Tertiary Structure

All of these tertiary

Steps in SN , reactions are:

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One

Two

Three

Four

Phosphorus helps the growth of

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Root

Leave

Stem

Seed

Use of ethanol as:

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Drink

Solvent and fuel

In beverage

All of these

Metallic conduction is also called as :

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Ionic conduction.

Protonic conduction.

Electronic conduction

Super conduction

Acetic acid is 1.33% ionized, In 1000 molecules of 0.1 M acetic acid the number of H⁺ions is

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1.33

13.3

1.33

1

Pick out the wrong statement. In electrochemical cell

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Electrons are released at anode

Cathode is regarded as negative electrode

Chemical energy is converted into electrical energy

Salt bridge maintains the electrical neutrality of the solution

For principle quantum number n=4, the total number of orbitals having l = 3 is

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3

7

5

9

The main pollutant of leather tanneries in the waste is due to the salt of:

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lead

Chromium (VI)

Copper

Chromium (III)

Which of the following has zero depole-moment?

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CIF

PCl₃

SiF₄

CFCl₄

Which of the following form normal oxide

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K

Li

Na

None

Which of the following particles has longest wavelength, if they have same speed:

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Proton.

Neutron.

Electron.

Positron.

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